61734520663626 has 32 divisors (see below), whose sum is σ = 133920509683968. Its totient is φ = 18895310005760.

The previous prime is 61734520663589. The next prime is 61734520663637. The reversal of 61734520663626 is 62636602543716.

It is a super-2 number, since 2×61734520663626² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7380976290 + ... + 7380984653.

It is an arithmetic number, because the mean of its divisors is an integer number (4185015927624).

Almost surely, 2^{61734520663626} is an apocalyptic number.

61734520663626 is an abundant number, since it is smaller than the sum of its proper divisors (72185989020342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61734520663626 is a wasteful number, since it uses less digits than its factorization.

61734520663626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14761961006.

The product of its (nonzero) digits is 39191040, while the sum is 57.

The spelling of 61734520663626 in words is "sixty-one trillion, seven hundred thirty-four billion, five hundred twenty million, six hundred sixty-three thousand, six hundred twenty-six".